If you are running a "newer" style aeroforce gauge, then make sure you are scanning under "knock 1", and not the knock 2 or knock 3 parameter. I drove with the gauge for a year thinking I had crazy spikes of KR at WOT (sometimes up to 7-8*), because I had it set to knock 2 and not knock 1. Knock 1 is for GM cars while knock 2 and 3 are for other vehicles. With it set to the correct scanning parameter for KR, I now just get "blips" of knock under hard throttle usually under 1* depending on the weather. Just an FYI...